Radiation shield for laundry drier control



P 4, 1956 w. L. TIEMANN 2,761,667

RADIATION SHIELD FOR LAUNDRY DRIER CONTROL Filed Nov. 24, 1955 CGOL A1 W/Z/ MM. 4. 7'/E'M4/VA/ INVENTOR ATTORNEYS.

RADIATION SHIELD FOR LAUNDRY DRIER CONTROL William L. Tiemann, Belleville, Ill.

Application November 24, 1953, Serial No. 394,096

1 Claim. c1. 263-19) This invention relates to a radiation shield for a laundry drier control box and more particularly to a. device of this character for the thermostatic control of a drier.

It is a principal object of this invention to provide a limit control box for a drier of the kind to be more specifically described hereinafter, the device being secured to the outside of the combustion chamber of a conventional clothes drier and enclosing the thermostat of the drier whereby the radiant heat of the drier burner may be carried off without discharging the direct heat from the flame of the drier burner.

It is another object of this invention to provide a limit control box of this kind which may be easily secured to the combustion chamber of a drier to increase the drying efficiency of the clothes drier, by an unskilled mechanic performing the installation of the added limit control box.

It is still another object of this invention to provide a limit control box of this kind which may be manufactured at a low cost to the manufacturer for the ready distribution and sale of the device to be added to the present drier as well as to manufacturers desiring to include the limit control box during the manufacture of driers.

Other and further objects and advantages of the invention will be hereinafter described and the novel features thereof defined in the appended claim.

Referring to the drawings:

Fig. 1 is a rear elevation, partly broken away and partly in section, of a clothes drier having a limit control box constructed according to an embodiment of my invention.

Fig. 2 is a side elevation, partly broken away and partly in section, taken on the line 22 of Fig. 1.

Fig. 3 is a top plan view, partly broken away and partly in section, of a drier having my limit control box.

Fig. 4 is an enlarged fragmentary section, taken on the line 4-4 of Fig. 1, of the combustion chamber in the clothes drier and limit control box.

Fig. 5 is a perspective view of the control box of my invention removed from the drier and showing the top, bottom, front and side walls of the control box.

Referring to the drawings, the numeral designates generally a clothes drier constructed or modified according to an embodiment of this invention, the clothes drier having a cabinet 11 within which the clothes to be dried may be contained during the period of the drying of the clothes.

The clothes drier 10 is provided with a combustion chamber 12 therein adjacent to a drum 13 within which the clothes to be dried may be contained.

The combustion chamber 12 is provided with a fuel burner 14 from which heat is emitted for the drying of the clothes.

The combustion chamber 12 is provided with a vent opening 15 in one side wall thereof, remote from the drum United States Patent 0 Ice 13 and a limit control box 16 is attached to the combustion chamber 12 for mounting and positioning a burner thermostat 25, for controlling the flame of the burner. The control box 16 is constructed according to an embodiment of my invention and attached to the combustion chamber 12 over the vent opening 15. The control box 16 is supported exteriorly of the combustion chamber 12 and is provided with an open front 17 which is in registry with the discharge opening 15 at all times.

The control box 16 is open on the bottom as indicated at 18, Fig. 5. Side walls 19 on the control box 16 attach to the combustion chamber 12 over the opening 15. The side walls 19 are solid throughout the area thereof.

A rear wall 20 connects the outer rear ends of the side walls 19. A vertical laterally extending flange 21 is formed on the forward end of each of the side walls 19 for attachment to the side wall of the combustion chamher on each side of the vent opening 15 therein.

Each of the flanges 21is provided with a pair of holes 22, along the length thereof through which bolts 23 are inserted to attach the control box 16 to the combustion chamber 12.

An opening or aperture 24 is provided in the rear wall 20 substantially at the center thereof to support a thermostat 25 and through which a portion of it extends into the control box 16. The thermostat 25, being of a conventional structure, is provided with electric leads 26 extending therefrom for connection to a source of electric supply. The leads 26 are connected at their ends to the outwardly extending posts 27 on the thermostat 25. A top wall 28 isformed on the control box 16 having a plurality of perforated openings 29 therein for the upward passage of cooler air through the control box 16, from open bottom 18.

While the specific details of one embodiment of this invention have been herein shown and described, the invention is not confined thereto as changes and alterations may be made without departing from the spirit and scope thereof as defined in the appended claim.

Having thus described my invention, what is desired to be protected by Letters Patent is:

A dryer, such as used by laundries, having a frame structure housing a drum receptacle for wet articles, a heat or combustion chamber having one end in close proximity to the receptacle and a side wall having a vent opening therethrough, a hollow boxlike structure having an open bottom and an open side, the surface opposite the open side having an aperture therethrough, and the top surface having a number of small perforations, the open side being attached to the side wall, over and surrounding the said vent opening so as to close the said side opening, a thermostat mounted in the aperture with the thermally responsive element enclosed within the boxlike structure, but spaced from the vent opening.

References Cited in the file of this patent UNITED STATES PATENTS 947,914 Junkers Feb. 1, 1910 2,506,517 Moore May 2, 1950 2,508,866 Mueller et a1 May 23, 1950 2,604,313 Grantham July 22, 1952 2,678,811 Mueller May 18, 1954 FOREIGN PATENTS 882,332 France Feb. 22, 1943 

